In the software life cycle, validation:

A.
Refers to the work product satisfying software maturity levels.

B.
Refers to the work product satisfying the real-world requirements and
concepts.

C.
Refers to the work product satisfying generally accepted principles.

D.
Refers to the work product satisfying derived specifications.

Explanation:
In the software life cycle, validation is the
work product satisfying the real-world requirements and concepts.
The other answers are distracters.